Carlos Melim
Electrical
Good morning everybody.
I need your expert advices.
We are retrofitting an hydro power plants with three Pelton turbines that drive 8 MW alternators.
Historically, the turbines cannot be operated below 2 MW. But I cannot find any manufacturer documents that support this figure.
I know that the minimum power has to do with the water speed in the nozzles that, if not limited, can be harmful to the gear.
What is a typical minimum flow figure for a Pelton turbine nozzle?
Somebody told me that we should always operate above 25% of the nominal power. It matches the 2 MW figure on an 8 MW turbine. But is the concept applicable to other Pelton turbines?
I am looking forward to hearing from you.
Best regards.
Carlos Melim
I need your expert advices.
We are retrofitting an hydro power plants with three Pelton turbines that drive 8 MW alternators.
Historically, the turbines cannot be operated below 2 MW. But I cannot find any manufacturer documents that support this figure.
I know that the minimum power has to do with the water speed in the nozzles that, if not limited, can be harmful to the gear.
What is a typical minimum flow figure for a Pelton turbine nozzle?
Somebody told me that we should always operate above 25% of the nominal power. It matches the 2 MW figure on an 8 MW turbine. But is the concept applicable to other Pelton turbines?
I am looking forward to hearing from you.
Best regards.
Carlos Melim
